Low
Wasmtime vulnerable to panic when using a dropped extenref-typed element segment
Type: advisorySources: OSV
wasmtime is a runtime for WebAssembly. The 19.0.0 release of Wasmtime contains a regression introduced during its development which can lead to a guest WebAssembly module causing a panic in the host runtime. A valid WebAssembly module, when executed at runtime, may cause this panic. This vulnerability has been patched in version 19.0.1.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2024-30266
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 01:20 UTC · Revision 1
Source evidence
Wasmtime vulnerable to panic when using a dropped extenref-typed element segment
core-osv · Original sourcePublished 4 Apr 2024, 15:42 UTC
wasmtime is a runtime for WebAssembly. The 19.0.0 release of Wasmtime contains a regression introduced during its development which can lead to a guest WebAssembly module causing a panic in the host runtime. A valid WebAssembly module, when executed at runtime, may cause this panic. This vulnerability has been patched in version 19.0.1.
osv:CVE-2024-30266
Complete source record
{
"id": "dc08330da9cc0533ef8403e9a90383d2247a5d1355f8f4d9b9fce2577feb8844",
"url": "https://osv.dev/vulnerability/CVE-2024-30266",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Wasmtime vulnerable to panic when using a dropped extenref-typed element segment",
"summary": "wasmtime is a runtime for WebAssembly. The 19.0.0 release of Wasmtime contains a regression introduced during its development which can lead to a guest WebAssembly module causing a panic in the host runtime. A valid WebAssembly module, when executed at runtime, may cause this panic. This vulnerability has been patched in version 19.0.1.",
"evidence": "osv:CVE-2024-30266",
"products": [],
"severity": "low",
"structured": {
"id": "CVE-2024-30266",
"aliases": [
"CVE-2024-30266",
"GHSA-75hq-h6g9-h4q5",
"PYSEC-2024-327",
"RUSTSEC-2024-0441"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/bytecodealliance/wasmtime",
"type": "GIT",
"events": [
{
"introduced": "6e0abd75440159e57e9f1c59a62dbc691eff18a4"
},
{
"fixed": "7f57d0bb0948fa56cc950278d0db230ed10e8664"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "= 19.0.0"
},
{
"last_affected": "= 19.0.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
},
{
"range": [
{
"fixed": "7f57d0bb0948fa56cc950278d0db230ed10e8664"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"19.0.0",
"= 19.0.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-30266.json"
}
}
],
"modified": "2026-10-28T02:30:48.688881338Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/30xxx/CVE-2024-30266.json",
"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-75hq-h6g9-h4q5",
"https://nvd.nist.gov/vuln/detail/CVE-2024-30266",
"https://github.com/bytecodealliance/wasmtime/issues/8281",
"https://github.com/bytecodealliance/wasmtime/commit/7f57d0bb0948fa56cc950278d0db230ed10e8664",
"https://github.com/bytecodealliance/wasmtime/pull/8018",
"https://github.com/bytecodealliance/wasmtime/pull/8283"
],
"provider_metadata": {
"cwe_ids": [
"CWE-843"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/30xxx/CVE-2024-30266.json"
}
},
"related_cves": [
{
"value": "CVE-2024-30266",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 516934,
"published_at": "2024-04-04T15:42:00.2+00:00"
}